Properties of Polyetheretherketone (PEEK) transferred materials in a PEEK-steel contact

Puhan, Debashis; Wong, Janet S.S.

doi:10.1016/j.triboint.2019.02.028

Cited by 44 publications

(30 citation statements)

References 69 publications

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“…When the experimental velocity was 0.06 m/s, a certain amount of PEEK islands was found on the surface of the counter face parts after experiments (Figure 7). According to previous studies, the formation of PEEK polymeric transfer film on counter face parts was mainly due to its adhesion properties 8,12,13 . As the experiments went on, PEEK adhered on the counter face parts and formed the transfer film under high contact pressure 35 .…”

Section: Discussionmentioning

confidence: 87%

“…Both of the above factors would aggravate the adhesive wear of PEEK and promoted the formation of transfer film. The water film was hard to form under low experimental velocity, the transfer film would provide a good self‐lubricating property for PEEK specimens by changing the friction pairs from PEEK‐tin bronze to PEEK‐PEEK 12,13 . Hence, the average friction coefficient of PEEK under 0.06 m/s decreased continuously with the increase in the amount of transfer film (Figures 2 and 7).…”

Section: Discussionmentioning

confidence: 98%

“…So, PEEK can promise a highly chemical stability when used as water‐lubricated bearing material. In addition, it also has high promise for a good self‐lubricating property 12–15 . Considering the above advantages, PEEK has a good potential to be suitable for making water‐lubricated bearing productions.…”

Section: Introductionmentioning

confidence: 99%

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Insight into water lubrication performance of polyetheretherketone

Guo

Yuan

2020

J of Applied Polymer Sci

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Polyetheretherketone (PEEK) is a kind of polymer with excellent mechanical properties combined with good wear resistance and has been widely used in the engineering field. In order to explore the possibility for PEEK using as a water-lubricated bearing material, an in-depth study on the water lubrication performance of PEEK was conducted by using a series of experiments. The water lubrication performances combined with the lubricating mechanism were evaluated both by the friction coefficient and by the wear behavior of PEEK. The results indicated that PEEK was suitable for water-lubricated bearing productions. The water film could form effectively between the friction pairs under high sliding velocity, while the transfer film could form under low sliding velocity. Both the water film and the transfer film could improve the water lubrication performance for the friction pairs. Moreover, sliding velocities and contact pressures highly influence the water lubrication performance of PEEK. The increase in contact pressure or the decrease in sliding velocity would exacerbate the wear of material. The stick-slip phenomena also occurred on the specimens under low sliding velocity. The main purpose of this study is to provide an experimental basis for PEEK using as a waterlubricated bearing material.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 98%

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Insight into water lubrication performance of polyetheretherketone

Guo

Yuan

2020

J of Applied Polymer Sci

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“…They act as protective films avoiding the direct contact of PEEK with hard asperities of steel and thus reduce friction and wear. In-situ observation of the PEEK wear process was reported by Puhan and Wong [23] and suggested that PEEK wear debris ploughed by the asperities of the counter surface re-entered the contact and became trapped between asperities of the counter surfaces by compression, forming PEEK transfer films on the counter surfaces. Kalin et al [24] reported transfer-film thickness and coverage showed a good correlation with the friction and wear performances of PEEK and PEEK composites.…”

Section: Introductionmentioning

confidence: 87%

Effect of Lubrication on Friction and Wear Properties of PEEK with Steel Counterparts

et al. 2019

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Poly-Ether-Ether-Ketone (PEEK) has been widely used for tribological applications with steel counterparts because of its superior mechanical and self-lubricating properties. Fluid lubrication has the potential to further improve the performance of PEEK/steel contacts but its effect has been shown to depend on the operating conditions. To elucidate these aspects and establish the mechanism of fluid lubrication, the friction and wear properties of the PEEK/steel contacts in both dry and poly-α-olefin (PAO) lubricated conditions were investigated by tribological tests and surface analytical techniques. The nanoindentation measurements showed that lubrication with PAO had a softening effect on the wear track of PEEK, but no correlation was established with the wear of PEEK. The tribological behavior, for both dry and lubricated contacts, was correlated with the thickness of PEEK transfer films on the steel counterparts. The thickness of these films, as determined by Electron Probe Micro Analysis (EPMA) and X-ray Photoelectron Spectroscopy (XPS), was controlled by the rates of their formation and removal and depended on the operating conditions. Moreover, lubrication with PAO inhibited not only the formation but also the removal of PEEK transfer films. This study thus sheds light on the mechanism of fluid lubrication of the PEEK/steel contacts.

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“…It has good high-temperature resistance, fatigue resistance, high strength and corrosion resistance. It has been widely used in aerospace, automobile and other fields [1][2][3][4][5][6][7][8][9]. The advantage of additive manufacturing (AM) technology is that it can quickly manufacture parts with complex structures and individual structures and has high material utilization [10].…”

Section: Introductionmentioning

confidence: 99%

Rapid injection moulding process of polyether ether ketone based on stereolithography

et al. 2019

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In this study, photosensitive resin mould was made by stereolithography technology to inject individualized polyether ether ketone (PEEK) parts. In simulation experiment, the temperature field of the PEEK injection mould was analysed by finite element analysis; it was preliminarily determined that the resin mould will not be deformed during the injection process. The optimum parameters of PEEK injection process were obtained by orthogonal experiment: injection temperature 373 °C, injection pressure 11 MPa and injection speed 70%. Mechanical tests were carried out on PEEK samples injected by this process. The results showed that the average tensile strength was 96.4 ± 2.28 MPa, the average bending strength was 147.654 ± 9.36 MPa, and the impact strength was higher than 10 kJ/m 2 . The experimental results show that it is feasible to produce photosensitive resin mould to inject individualized PEEK parts by stereolithography. Photosensitive resin mould has lower cost, shorter production cycle and no waste of PEEK material during injection process. The injection method in this study greatly reduced the production cost of individualized PEEK parts and can obtain PEEK parts with good mechanical properties in a relatively fast time.

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Properties of Polyetheretherketone (PEEK) transferred materials in a PEEK-steel contact

Cited by 44 publications

References 69 publications

Insight into water lubrication performance of polyetheretherketone

Insight into water lubrication performance of polyetheretherketone

Effect of Lubrication on Friction and Wear Properties of PEEK with Steel Counterparts

Rapid injection moulding process of polyether ether ketone based on stereolithography

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